CN102684720B - For the method and apparatus carrying out radio communication in process control or monitoring of environmental - Google Patents

For the method and apparatus carrying out radio communication in process control or monitoring of environmental Download PDF

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Publication number
CN102684720B
CN102684720B CN201110305481.3A CN201110305481A CN102684720B CN 102684720 B CN102684720 B CN 102684720B CN 201110305481 A CN201110305481 A CN 201110305481A CN 102684720 B CN102684720 B CN 102684720B
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China
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described
communication
stack
characterised
wireless communication
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CN201110305481.3A
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Chinese (zh)
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CN102684720A (en
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K·W·琼克
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费希尔控制国际公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50Service provisioning or reconfiguring
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/418Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
    • G05B19/4185Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by the network communication
    • G05B19/4186Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by the network communication by protocol, e.g. MAP, TOP
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/12Network-specific arrangements or communication protocols supporting networked applications adapted for proprietary or special purpose networking environments, e.g. medical networks, sensor networks, networks in a car or remote metering networks

Abstract

The present invention relates to the method and apparatus for carrying out radio communication in process control or monitoring of environmental.A kind of method in communication equipment, it realizes communication stack, with according to universal wireless communication agreement and remote equipment radio communication, wherein, described remote equipment operates in process control environment, the method includes: receive the request from software module, to set up the wireless communication link with described remote equipment;Set up being directly connected between described software module and described communication stack, wherein, described in be directly connected to without intermediary service;And according to industrial automation protocol, by described wireless communication link communication procedure data between described software module and described remote equipment, wherein, described wireless communication link utilizes described universal wireless communication agreement.

Description

For the method and apparatus carrying out radio communication in process control or monitoring of environmental

Technical field

This invention relates generally to a kind of process control network, more particularly, to by just Field apparatus is operated by portable device.

Background technology

The automation process such as used in chemicals or oil process plant is controlled System carries out configuring, monitoring and the operator of trouble-shooting, uses hand-held the most at the scene Or portable field maintenance of equipment accesses system unit.Typically, it is used for controlling and/or supervising The system of survey process includes one or multiple concentration or nonconcentrated process controller, its It is communicably coupled at least one main via simulation, numeral or united analog/digital bus Machine or operator's work station and process control and the inspection such as one or multiple such as field apparatus Measurement equipment.Field apparatus, its can be such as valve, valve positioner, switch, conveyer and Sensor (such as temperature, pressure and flow sensor), is arranged in process plant environment, And perform such as to open or close valve closing, measurement process parameters, increase or reduce fluid stream Move the function during waiting.Smart devices, such as in accordance with known FOUNDATIONTM (such as FOUNDATION is existing for fieldbus (hereinafter referred to " fieldbus ") agreement Field bus version 5.1) or Agreement is (such as, in April, 2010 by international electricity The certification of work committee is as the version of IEC 62591) field apparatus, it is possible to perform control meter Calculation, warning function and other control function generally realized in process controller.

Process controller, it is generally arranged in process plant environment, receives and indicates by existing That field device produces or associated process measurements or the signal of process variable and/or Other information relevant with field apparatus, and perform controller application.Controller application examples is strictly according to the facts Existing different control module, it is made process control and determines, produces control based on the information received Signal processed and with in the such as field apparatus such as HART and Fieldbus field device perform Control module or block coordinate.Control module in process controller by communication line or Signal path sends a control signal to field apparatus, thus controls the operation of process.

Information from field apparatus and process controller generally can be worked by such as operator Stand, service workstations, personal computer, portable equipment, data historian, report Generator, concentration database other hardware devices one or more obtain so that operation or Maintainer corresponding to such as change process control routine setting, adjust process controller or The operation of the control module in smart devices, the process observed in process plant or specific Equipment current state, observe produced by field apparatus and process controller alarm, for instruction Practice personnel or test process and control software purpose and the operation of simulation process, diagnosis process plant The processes such as interior problem or hardware fault, and the function needed for performing.

Although common process plant have be connected with one or multiple process controller permitted Many process control and detection equipment, such as valve, conveyer, sensor etc., but also process Other holding equipment of needed for operation or associated many.These extra equipment bags Include such as power supply unit, generating and controller switching equipment, the such as rotating machinery such as turbine, motor, It is arranged at many positions in usual factory.Although this extra equipment not necessarily produces or It is to use process variable, in many instances, for the purpose of influence process operation, and is not subject to Process controller controls even without being coupled to process controller, and this equipment is still for process Suitably operation is critically important, and is that the proper operation of process is finally necessary.

It is known that problem frequently appears in process plant environment, particularly have greatly In the process plant of amount field apparatus and a holding equipment.The problems referred to above can behave as fault or non- Normal device, such as software routines etc. are in the logic element under inappropriate pattern, inappropriate In the communication between equipment in process control loop, one or multiple process plant that ground adjusts The form such as fault.Although actually a lot, but these and other problem generally causes process to exist (under such as process plant is in off rating) is operated, its general and mistake under abnormal state The sub-optimal performance of journey factory is correlated with.

The Handheld field maintenances of equipment such as such as raw 475 communicators of Ai Mo can be used or make It is used on the such as general portable device such as smart mobile phone or personal digital assistant (PDA) operation Software application and field apparatus and miscellaneous equipment are locally analyzed at the scene.Example As, the ValveLink Mobile software from Ai Mosheng process management can be at portable set Upper execution, and unlatching, calibration and trouble shoot function are provided.In general, although some Equipment supports wired and radio communication, but operator finds the wireless company being suitable for majority application Connect.

Typically, wireless connections set up by portable set, for according to certain industrial automation Agreement (such as HART or fieldbus) uses virtual serial (" COM ") port Come transmitting procedure control or diagnostic message to field apparatus, or be transmitted across from this field apparatus Process control or diagnostic message.More specifically, portable set includes radio communication storehouse, its Support according to such as Radio communication etc. a certain standard.Simulation software supports virtual COM port function, to play between the application and communication stack run on portable devices The effect of interface.Therefore, the software application supporting COM communication uses simulation software to connect To virtual COM port, directly do not come via wireless communication link alternately with communication stack Transmission and reception data.

But, need the biggest configuration effort via the communication of virtual COM port.Such as, In order to configure application on portable devices to exchange HART with field apparatus via bluetooth Message, the bluetooth that user is switched on portable set is wireless, by portable set be coupled to The HART modem pairing of field apparatus, sets up and is associated with the field apparatus matched The virtual COM port of output, direct application is to set virtual COM with the scene matched Standby association.Additionally, after message exchange between the field apparatus applied and matched, It is wireless that user must remember to close bluetooth.

Summary of the invention

In certain embodiments, software application need not open virtual COM port, and passes through Access suitable communication stack and just set up wireless communication link with remote equipment, with exchanged program control System and/or Monitoring Data.Software application can be at the such as portable set such as smart mobile phone, PDA Upper operation.In order to access communication stack (referred to here as " directly accessing ") by this way, Application can call one or more for the application programming interfaces letter directly processing communication stack Number (API) (referred to here as " CommAPI ").According to this embodiment, CommAPI rings Should be in synchronizing or asynchronous function call.Such as, CommAPI can allow application directly invoke with The function that communication stack is associated, so that the function called is positioned in the allocating stack of application. Alternatively, CommAPI allows application to realize with as independent task (such as process, process) Service interaction, communication stack can be serviced by this service.

Communication stack can connect communications such as (IrDA) according to such as bluetooth or infrared data Standard and the radio communication of short distance is provided.According to this embodiment, communication stack is provided as A part or the conduct of the operating system of portable set are such as carried by Broadcom company WIDCOMM bluetooth stack or the bluetooth stack etc. provided by Microsoft of confession independently carry The component software of confession.Communication stack can be provided via one group of standard API.

In certain embodiments, software application is directly or by the communication embedding application code API calls the function associated with communication stack.In other embodiments, CommAPI is carried It is provided as the parts that such as dynamic link library (DLL) etc. can be independently installed.

In certain embodiments, CommAPI makes application set up the channel radio with remote equipment Letter link, described remote equipment is according to the communication protocol operations such as such as HART, described communication protocols View is supported to be defined especially and is controlled for transmitting procedure and/or the order of monitoring information and/or letter Breath element.

Accompanying drawing explanation

Fig. 1 shows example process control system, can use real in this Process Control System The portable communicator of the technology of the existing present invention;

Fig. 2 is the block diagram of illustrative portable communicator carrying out in the system of fig. 1 operating;

Fig. 3 A is the block diagram of the software system of prior art, and wherein, channel radio is passed through in application Letter link communication process control or monitoring information;

Fig. 3 B is the exemplary interface screens of portable set, and thus user can call establishment And configuration function;

Fig. 4 is the block diagram of example software system, wherein, applies straight with radio communication storehouse Connect mutual, with communication course control or monitoring signal;

Fig. 5 is the flow chart of illustrative methods, and it is for setting up on portable devices and nothing Being directly connected to of line communication stack;

Fig. 6 is the flow chart of illustrative methods, and it is for configuration and nothing on portable devices Being directly connected to of line communication stack.

Detailed description of the invention

Fig. 1 shows example process control system 10, and it has operator and can use portable The equipment that formula communicator 12 is controlled and/or monitors.In embodiment discussed herein, just Take formula communicator 12 and be equipped with the double-direction radio module worked by radio communication storehouse.Just Taking formula communicator 12 is Special handheld field maintenance equipment (raw 475 communicators of such as Ai Mo) Or the such as general portable device such as smart mobile phone or PDA, its have can allow software should With directly access radio communication storehouse component software, thus application be not need to rely on virtual COM port.In this way, operator can easy to quickly access equipment.

Process Control System 10 includes one or multiple process controller 14, and it is connected to (it can be any type of individual's meter for one or multiple host workstations or computer 15 Calculation machine or work station), and it is connected to the storehouse of input/output (I/O) equipment 20,22, it Be all sequentially connected to one or multiple field apparatus 25.Controller 14, for example may be used Being by fischer-Rosemount system limited company (Fisher-Rosemount Systems, Inc.) DeltaV that sellsTMController, by such as ethernet link 40 or It is that other communication connection mode is connected communicatedly with host computer 15.Similarly, controller 14 use any desired hardware and softwares to communicate to connect with field apparatus 25, this hardware and soft Part is any with such as standard 4-20ma equipment and/or such as fieldbus or HART protocol etc. Smart communication protocol is correlated with.It is known that controller 14 realizes or monitors being stored therein Or relative process control routine, and communicate with equipment 25-36, thus with the most uncommon Process is controlled by the mode hoped.

Field apparatus 25 can be any type of equipment, such as sensor, valve, transmitter, Localizer etc., and the I/O card in storehouse 20 and 22 can be any type of I/O equipment, It is in accordance with any desired communication or controller protocol, such as HART, fieldbus, process Fieldbus (profibus) etc..In the embodiment that Fig. 1 illustrates, field apparatus 25a-25c Being the 4-20ma equipment of standard, it is communicated with I/O card 22a by mimic bus.Scene sets Standby 25d-25f is represented as the HART device being connected with the I/O card 20A of compatible HART. Similarly, field apparatus 25j-25l is smart machine, the field apparatus of such as fieldbus, Its use such as field bus protocol communication by number bus 42 or 44 and I/O card 20B or 22B communicates.Certainly, the storehouse of field apparatus 25 and I/O card 20 and 22 can in accordance with except 4-20ma, Any desired standard outside HART or field bus protocol or agreement, it includes future The arbitrary standards grown up or agreement.

In one embodiment, the functional blocks that each controller 14 is configured to be commonly called realizes Control strategy, wherein, each functional blocks is the part (such as subroutine) in all control routines, Its (by being referred to as the communication of link) comes together to realize in Process Control System with other functional blocks Process control loop in 10.Functional blocks generally perform such as with transmitter, sensor or other Input function that process parameter measurement device is relevant, such as with perform the control such as PID, fuzzy logic The control function that system is relevant and the operation to some equipment such as such as valves are controlled with in process One in the output function of some physical function is performed in control system 10.Certainly, also deposit Mixing and other type of functional blocks in functional blocks.Additionally, the group of functional blocks can be described as module. Functional blocks and module are storable in controller 14 and are executed by, and this situation is typically These functional blocks be used for or with the 4-20ma equipment of standard and certain form of smart fields Situation when equipment is correlated with, or functional blocks and module are storable in field apparatus and by fact Existing, this it may is that have the situation of field bus device.Although use functional blocks at this Control strategy provides the description of control system, but is used as such as ladder logic, sequential flow Other customary means such as Cheng Tu and use any desired proprietary or non-proprietary program language Realize or design control strategy.

When checking or open new equipment, or when field apparatus being configured or event Barrier search time, operator sometimes must (and often preferring) physically close to system unit, And these parts of close-ups at work.As it appears from the above, operator can use portable logical News device 12 is set up the short-distance radio of the one or more parts with system 10 and is connected.To this end, System 10 can include one or more access point for wireless access, such as wireless-modulated solution Adjust device 60a and 60b.In the exemplary embodiment, radio modem 60a includes by indigo plant The wave point of tooth standard operation, in bluetooth, the message of HART communication protocol is layered Adapter and wired by corresponding wired connection and HART device 25f exchange message Interface.As another example, radio modem 60b includes the nothing by bluetooth standard operation Line interface, the adapter in bluetooth, the message of fieldbus communication protocol classified and The wired of message is exchanged with field bus device 25j, 25k and 25l by number bus 44 Interface.

Referring now to Fig. 2, according to an embodiment, portable communicator 12 includes: antenna 72; Four-way less radio-frequency (RF) module 74 (its can have Digital Signal Processing (DSP) parts, Encoder, manipulator etc.);Computer-readable memory 76, it stores data and computer journey Sequence;And processing unit 78, it performs these instructions.RF module 74 can support bluetooth (example As by 802.15.1 agreement in 2005 approved versions 1.2), IrDA (such as IrDA Physical layer specification v1.4, IrDA link access protocol v1.1, IrDA LMP Link Manager Protocol v1.1), Or other communication protocol or standard.In certain embodiments, RF module 74 is according to such as pressing The association of one of IEEE802.11 (such as IEEE802.11-2007) or 802.15 standards approval View communication.Processing unit 78 is also coupled to system 80, for receiving respectively and providing user defeated Enter output.According to this embodiment, system 80 include one or more keyboard, pointing device, Screen or touch screen.Additionally, portable communicator 12 can include that local power supply stores module 82, such as replaceable battery etc..In certain embodiments, portable communicator 12 is in accordance with solid There is security requirement, using in such as oil rig or oil plant safely.

As described in more detail below, the program being stored in computer-readable memory 76 can Including component software, its can make portable communicator 12 according to such as HART, fieldbus, Or Process FieldbusROFIBUS etc. or multiple industrial automation protocol are by by RF module 74 The communication protocol supported transmits message.Then, illustrate by using virtual with reference to Fig. 3 A COM port and make the software of the prior art that application communicates via wireless communication link System, putting off until some time later bright application subsequently, the most not use virtual COM port directly to access wireless The efficient system of Fig. 4 of communication stack.The software system of Fig. 3 A and Fig. 4 explanation can be such as Portable communicator 12 equipment such as grade realizes.

With reference first to Fig. 3 A, system 100 includes software architecture 102, and it supports wireless stack Service 104, virtual COM port service 106, application 108 and other possible service and Application, wherein, the radio communication storehouses such as such as bluetooth are safeguarded in described wireless stack service 104, Described virtual COM port service 106 service one or multiple virtual COM port, institute State application 108 for using the industrial automation protocol such as such as HART monitor and/or control The parts of Process Control System.Software architecture 102 can include such as Windows Mobile, plug The operating systems such as class or Android.In general, software architecture 102 provides portable logical The news physics of device and the access of the basic service such as logical resource and such as file system operation, to The access etc. of family input and output device.In certain embodiments, wireless stack service 104 with Software architecture 102 integration.Together with corresponding hardware component, software architecture 102 specifies just Take the platform of formula communicator.

In order to use the radio communication storehouse worked by wireless stack service 104, application 108 call one or multiple COM port API 110, to take with by virtual COM port The virtual COM port of business 106 emulation is mutual.But, user must activate wireless stack clothes Business 104, to virtual COM port service 106 (be wireless stack service in some cases 104) configure, set up the wireless connections with target device, and instruction association is virtual COM port is to target device.Only after user completes above-mentioned configuration step, apply 102 Start and target device exchange monitoring and/or the information of control.

As it has been described above, above-mentioned foundation and configurator time-consumingly and are prone to make mistakes.For example, referring to Example touch screen interface screen 120 shown in Fig. 3 B, user must pass through control piece 122 Activate " connection bluetooth " effectiveness, corresponding platform is then associated with bluetooth establishment step Process, and be manipulated by part 124 and set up process to start virtual COM port.For The test of enforcement valve stroke, such as, user can then operate control piece 126, suitable to call Software application.Application normally shows dialogue, to allow user via using control piece respectively Virtual COM port and the bluetooth connection of 124 and 122 configurations configure wireless connections.

And, arrangements discussed above problem often mix different suppliers, in nothing Difference in the realization of line communication stack, more specifically, mix the difference configuring in effectiveness. Such as, some supplier to need user to set up before starting the application utilizing port virtual COM port, and other supplier needs to perform above-mentioned steps with reverse order.

By contrast, the system 150 illustrated by Fig. 4 includes applying 122, this application via Directly and wireless stack service 124 is with interactive for one group of API126, and then need not with virtual The complex configurations that COM port is relevant.Application 152 can use one group of wireless stack API156 And it is the most interactive with wireless stack service 154.More specifically, application 152 is according to such as The industrial automation protocol such as HART, fieldbus, Profibus, by portable communicator Support to transmit message on radio communication storehouse.In one embodiment, application 122 is by Ai Mo The ValveLink Mobile that raw process management is sold, its provide remotely the controlling of valve, monitoring, And diagnosis.

Referring again to Fig. 2, RF module 74 can be controlled by wireless stack service 124, should Module can be bluetooth radio, IrDA communication module etc..Component software 152,154,156, Memorizer 76 can be stored in 162, and be performed by CPU78.

In certain embodiments, API156 is one group of exposed by wireless stack service 154 Group function, i.e. by the developer institute of the wireless stack service 154 for sending and receive data The function provided.In other embodiments, to include being serviced 154 by wireless stack sudden and violent for API156 " packaging " of the API of dew, with definition termination layer between application and radio communication storehouse.? In one embodiment, such as, API156 is as conducts such as such as dynamic link libraries (DLL) individually Component software be provided, use for multiple application.

In example system 150, application 152 and wireless stack service 154 be use by Framework 128 provide Inter-Process Communication (IPC) mechanism and the single task of interaction (such as Process, process).Such as, framework 128 can provide communication, for via shared memory block The mechanism etc. of territory exchange information.Correspondingly, between application 152 and wireless stack service 154 Interaction can include asynchronous function call.But, in other embodiments, radio communication storehouse 154 Wireless stack function can be executed at application 152 allocating stack on.In other words, should Direct (or passing through API156) in a synchronous manner function 162 can be called with 152.At this In at least some of a little embodiments, wireless stack service 154 is performed not as independent task.

On the other hand, in other embodiments, wireless stack API156 can with as application Interface between 152 and wireless stack service 154 and other task of operating is interactive.General, Should be appreciated that the direct interaction of application 152 and wireless stack function 162 can call heap identical Realized by function call on stack or individually allocating stack, and according to described realization (this depends on the demand of framework 160 then) uses one or multiple task.

In order to realize the direct access to radio communication storehouse, application 152 and/or wireless stack API156 can provide by the function of application 152 use, industrial automation protocol driving. Such as, if application 152 use HART monitors or controls field apparatus, then wireless stack API156 can every order based on and be defined, with emulate HART connect timing, Shielding and other attribute.Thus, wireless stack API156 identifies, and implements at these In some in example, partly perform (such as to provide return code, tempo instructions, scheduling instruction Deng) received by HART command, with realize with application 152 HART communication link. As a more specifically example, in wireless stack API156 can realize HART life Make formatting and the transmission of 0 (zero), this order make reception HART device expansion equipment code, Correction standard and equipment identiflication number reply.API by command format, and can make this lattice Order after formula is transmitted via radio communication storehouse, and guarantees suitable timing and shielding etc.. In one embodiment, API also utilization state machine processes the response to HART command 0, inspection Debugging misses, etc..In other embodiments, API is transmitting HART command via communication stack Returning the most immediately the control calling application 152, another component software (such as thread) connects Receive and process the notice from wireless stack service 154: received this response.Response (or logical Know) it is then forwarded to apply 152.

General, wireless stack API156 (and, in certain embodiments, at framework 160 In run as independent task, serviced with by wireless stack service 154 contributing to application The parts directly accessed between radio communication storehouse) provide and be associated with industrial automation protocol Communication plan, the program the most not by portable communicator communication stack provide.Such as, It is known that bluetooth standard does not provide master slave communication protocol.

Additionally, in certain embodiments, application 152 and/or wireless stack API156 utilize Wireless stack 154 allows other service or application call wireless stack function.Such as, if Perform system 150 on smart mobile phone and wireless stack service 154 operates according to bluetooth standard, then Application 152 only uses some resource of wireless stack service 154, and wireless stack 154 can be by Audio transmission is in the earphone of user, such as simultaneously with field apparatus communication.

In certain embodiments, such as when user starts application 152, wireless stack API156 Can be provided to wireless stack service 154 by the suitable order of transmission and such as automatically open up RF The functions such as module 74 (seeing Fig. 2).In this way so that configuration simplifies further, Operator need not remember to activate wireless link before using application.

Additionally, wireless stack API156 can automatically determine the type (example of wireless stack service 154 Such as manufacturer, version), and automatically select suitable config option.Such as, certain wireless heap Stack API can inquire about framework 160, with determine Bluetooth communication storehouse be Microsoft's storehouse or Widcomm storehouse, and according to Query Result, select suitably order to set up application 152 And the link between wireless stack service 154.

In one embodiment, wireless stack API156 allows application 152 automatically to find to support HART, fieldbus or setting by other industrial automation protocol of application 152 use Standby.Such as, application 152 can find the HART of operation in the range of portable communicator automatically Bluetooth modem.User is then from during starting the list automatically generated after application 152 Select he or she want connect equipment.Then, wireless stack API156 can automatically attempt to Set up the connection with known field apparatus.Additionally, if it is required, wireless stack API156 can Application is allowed automatically to re-establish the connection of loss.

Additionally, in certain embodiments, application 152 and/or wireless stack API156 filter Falling is not all bluetooth equipments closed on of HART bluetooth modem.To this end, application 152 can such as make the wireless stack service 154 all of bluetooth equipment of discovery, by accordingly Bluetooth connects transmission orders to determine whether this equivalent devices is HART device, and is not connecing Show that this equipment is not that HART sets when receiving the response to this order or in the response received Time standby, wireless stack service 154 is made to delete this equipment from the list of devices found.

In one embodiment, application 152 and/or wireless stack API156 realize automatization's electricity Source control, thus RF module 74 can be efficiently used power reservoir 82 (seeing Fig. 2). Such as applying 152 from the HART sensor being coupled to HART bluetooth modem When reading cycle more new data, application 152 can update scheduling (such as every 2s according to the cycle Have the cycle of 50 milliseconds) and (by such as wireless stack service 154) open bluetooth RF module 74。

If it is required, do not having other operate in the service of portable communicator or just apply In the case of using wireless stack service 154, application 152 in certain embodiments can make RF module 74 is closed in wireless stack service 154 after user terminates to apply 152.Thus, User need not remember to close RF module 74 when wireless link does not uses.

Fig. 5 is the flow chart of illustrative methods 200, and the method can be by portable communicator Realizing in the system 150 of upper operation or similar software system, this portable communicator provides Directly accessing radio communication storehouse.In frame 202, receive for setting up and remotely setting The standby request carrying out wireless connections, for exchange process control and/or monitoring information.Such as, when When user starts the application such as such as ValveLink Mobile, request can be automatically initiated in this application. According to this embodiment, this request can be by this allocating stack applied or in independent task The wireless stack api layer performed processes.Then, in frame 204, such as, use by wireless The API that protocol stack exposes directly sets up wireless link.In one embodiment, application starts State machine, to control to be associated with the industrialization communication protocol such as such as HART and via such as indigo plant The timing of connection of the wireless universal link establishments such as tooth, shielding and other parameter.Then, exist In frame 206, come exchange process control and/or Monitoring Data by wireless link.Thus, application Bluetooth stack API can be used to simulate HART communication link.

Fig. 6 is the flow chart of illustrative methods 210, and application can perform the method as method The part of 200, be such as used for portable communicator simplifies configuration further.At frame 212 In, determine the type of radio communication storehouse (such as bluetooth).To this end, inquiry can be transferred to Wireless stack services, and response can be processed accordingly.This inquiry can report that such as this is wireless The manufacturer of stack services and software version.Then, in block 214, can automatically select properly API.If self identification is Widcomm storehouse by such as wireless stack service, then can make By API special for Widcomm, state machine, parameter etc..

Although the specific descriptions of the various different embodiments of the present invention of word proposition above, but Should be appreciated that the word of the claim that the scope of the present invention finally proposed by this patent adds To limit.Specific descriptions are used only to construct for reference, and if due to inessential, describe Every kind of possible embodiment is unpractical, may hence without describe the present invention every kind Embodiment.Prior art or the technology reality invented after this patent is submitted to can be used Existing various equivalents, it will fall into the scope of the claims limiting the present invention In.

Additionally, can under the premise without departing from the spirit and scope of the present invention, to being described herein Multiple modification and change is carried out with technology and the structure of explanation.It will thus be appreciated that retouch at this The method and apparatus stated is only and illustrates, and it does not constitute limiting the scope of the invention.

Claims (24)

1. the method in communication equipment, it realizes communication stack, with according to wireless universal Communication protocol and remote equipment radio communication, wherein, described remote equipment is at process control environment Middle operation, described method includes:
Receive the request from software application, to set up the wireless communication link with described remote equipment Road;
Described software application is set up by one group of wireless stack application program interface function (API) And being directly connected between described communication stack;And
According to industrial automation protocol, by described wireless communication link described software application with Communication procedure data between described remote equipment;
Wherein, described wireless communication link utilizes described universal wireless communication agreement.
2. the method for claim 1, it is characterised in that be directly connected to described in foundation Including being not switched on virtual serial port to communicate with described communication stack.
3. the method for claim 1, it is characterised in that described universal wireless communication Agreement is in accordance with IEEE 802.11 or IEEE 802.15 standard.
4. method as claimed in claim 3, it is characterised in that described universal wireless communication Agreement is bluetooth.
5. the method for claim 1, it is characterised in that described industrial automation is assisted View supports multiple orders, and the plurality of order is specifically defined hands in process control environment Change control or diagnosis data.
6. method as claimed in claim 5, it is characterised in that described industrial automation is assisted View is one in HART or Fieldbus.
7. the method for claim 1, it is characterised in that also include:
In response to receiving the described request from described software application, and automatically identify described communication The type of storehouse;
Wherein, set up and described between described software application and described communication stack, be directly connected to bag Include the type according to described identification set up described in be directly connected to;
Wherein, the manufacturer of the most described communication stack of described type identification and version.
8. the method for claim 1, it is characterised in that described communication stack is in nothing Operate in line communication module, at least one during described method is further comprising the steps of:
In response to receiving the described request from described software module, and open described radio communication Module;And
In response to detecting that described software module, not in use by described wireless communication link, and is closed Described wireless communication module.
9. method as claimed in claim 8, it is characterised in that described in be directly connected to pass through Application programming interfaces in the allocating stack of described software module are set up.
10. the method for claim 1, it is characterised in that communicate described process data Including:
Receive and in the associated plurality of order of described industrial automation protocol;And
Partly perform described received one in the plurality of order, to simulate basis The physical link of described industrial automation protocol operation.
11. 1 kinds of devices used in a communications device, it realizes communication stack, with according to logical By wireless communication protocol and remote equipment radio communication, wherein, described remote equipment is the most program control Operating in environment processed, described device includes:
Receiving device, it is for receiving the software application of execution in comfortable described communication equipment Request, to set up the wireless communication link with described remote equipment;
Setting up device, it is for by one group of wireless stack application program interface function (API) Set up being directly connected between described software application and described communication stack;And
Communicator, it is for existing by described wireless communication link according to industrial automation protocol Communication procedure data between described software application and described remote equipment;
Wherein, described wireless communication link utilizes described universal wireless communication agreement.
12. devices as claimed in claim 11, it is characterised in that with dynamic link library Mode realizes described device.
13. devices as claimed in claim 12, it is characterised in that described dynamic link library The allocating stack of described software application is performed.
14. devices as claimed in claim 12, it is characterised in that described dynamic link library Realizing multiple application programming interfaces function, each application programming interfaces function is corresponding to described industry certainly In multiple orders of dynamicization agreement respective one.
15. devices as claimed in claim 11, it is characterised in that described device is special Performing in the allocating stack of service, this service is held as process separate with described software application OK.
16. devices as claimed in claim 11, it is characterised in that described in be directly connected to not Use the virtual serial port being associated with described communication stack.
17. devices as claimed in claim 11, it is characterised in that described wireless universal leads to Letter agreement is in accordance with IEEE 802.11 or IEEE 802.15 standard;And
Described industrial automation protocol support multiple orders, the plurality of order ad hoc defined with Control for exchange in process control environment or diagnosis data.
18. 1 kinds of communication equipments, including:
Processor;
Wireless communication module, is configured to set up described communication equipment and grasps with in process control environment Wireless communication link between the remote equipment made, wherein, described wireless communication link is according to logical Operate with wireless communication protocol;
Memorizer, stores computer executable instructions, and this instruction includes:
Communication stack, it is achieved described universal wireless communication agreement;
Software module, can be performed by described processor, and is configured to (i) in response to from described The request of software application, is built by one group of wireless stack application program interface function (API) Vertical being directly connected between described communication stack and the software application performed by described processor;And And (ii) according to industrial automation protocol, use described wireless communication link described software should With communication procedure data between described remote equipment.
19. communication equipments as claimed in claim 18, it is characterised in that described software mould Block realizes in the way of dynamic link library.
20. communication equipments as claimed in claim 19, it is characterised in that described dynamic chain Connecing storehouse and perform multiple application programming interfaces functions, each application programming interfaces function corresponds to described work In multiple orders of industry automation protocol respective one.
21. communication equipments as claimed in claim 18, it is characterised in that described software mould Block is further configured to the most transmitting according to described software application or receiving process data and have Selectively turn on described wireless communication module.
22. communication equipments as claimed in claim 18, it is characterised in that described software should With being configured to the reception diagnosis data from described remote equipment, data transmission will be controlled to institute State remote equipment, or both are furthermore.
23. communication equipments as claimed in claim 18, it is characterised in that described software mould Block is further configured to automatically identify the type of described communication stack, and wherein, the type identifies at least The manufacturer of described communication stack and version.
24. communication equipments as claimed in claim 18, it is characterised in that described software mould Block is directly connected to described in being configured to not configure virtual serial port and setting up.
CN201110305481.3A 2011-03-09 2011-09-30 For the method and apparatus carrying out radio communication in process control or monitoring of environmental CN102684720B (en)

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